Problema Solution
A beaker contains 400 mL of a 15% benzene solution. How much 40% benzene solution must be added to produce a 35% benzene solution?
Answer provided by our tutors
Let 'x' represent the amount in mL of 40% benzene solution needed to produce 35% benzene solution.
0.15*400 + 0.40*x = 0.35(400 + x)
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click here to see the equation solved for x
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x = 1,600 mL
1,600 mL of 40% benzene solution must be added to produce 35% benzene solution.